I got also faced this error . when I was using same column name in two different tables and trying to access them.I renamed the column in one of the tables and it started working.
--RorUser On Thu, Nov 24, 2011 at 3:40 PM, Gianluca Padovani <gpadov...@gmail.com>wrote: > Hi to all, > I have this error and I don't understand why. I have three model, > Image and Playlist and PlaylistItem. Everything works fine. The app > should work also a XML REST service. When I made this call I obtain > this XML because the playlist don't contains images: > > GET http://0.0.0.0:3000/playlists/7.xml > <playlist> > <id>7</id> > <name>metallo</name> > <images></images> > </playlist> > > I would put some images in playlist (the images are already presents > on server) I should made this call: > > PUT http://0.0.0.0:3000/playlists/7.xml > > <playlist> > <id>7</id> > <name>metal</name> > <images> > <image> > <id>1</id> > <name>gino</name> > </image> > <image> > <id>2</id> > <name>pino</name> > </image> > </images> > </playlist> > > but I obtain this error: > > ActiveRecord::AssociationTypeMismatch in PlaylistsController#update > Image(#87559180) expected, got Array(#78093260) > > parameters: > {"playlist"=>{"id"=>"7", > "name"=>"metal", > "images"=>{"image"=>[{"id"=>"1", > "name"=>"gino"}, > {"id"=>"2", > "name"=>"pino"}]}}, > "id"=>"7", > "format"=>"xml"} > > This are the three models: > > class Image < ActiveRecord::Base > attr_accessor :picture > validates :name, :uniqueness => true, :presence => true > validates :picture, :presence => true > > has_many :playlist_items > has_many :playlists, :through => :playlist_items > end > > class Playlist < ActiveRecord::Base > validates :name, :presence => true, :uniqueness => true > > has_many :playlist_items > has_many :images, :through => :playlist_items > accepts_nested_attributes_for :images, :allow_destroy => true > end > > class PlaylistItem < ActiveRecord::Base > belongs_to :image > belongs_to :playlist > end > > The project can be found here: https://github.com/gpad/rms > > can anybody help? > > thanks > Gianluca > > -- > You received this message because you are subscribed to the Google Groups > "Ruby on Rails: Talk" group. > To post to this group, send email to rubyonrails-talk@googlegroups.com. > To unsubscribe from this group, send email to > rubyonrails-talk+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/rubyonrails-talk?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
